privacyIDEA is a multi-factor authentication solution. It can manage any type of authentication device. All common OTP (one time password) devices are supported, including Google Authenticator, eToken Pass, OTP cards, Yubikey, SMSOTP, and mTAN/mobileTAN. New devices can be added easily. Users can be retrieved from flat files, LDAP, Active Directory, SQL databases, and SCIM services. It can also handle authorization and writes all events to a digitally signed audit log, giving you basic AAA functionality.

web2ldap is a full-featured Web-based LDAPv3 client written in Python. It is designed to run either as with stand-alone built-in Web server or under the control of another Web server with FastCGI support (e.g. Apache with mod_fastcgi). It has support for various LDAPv3 bind methods and a powerful built-in schema browser. HTML templates are supported for displaying and editing entries, and LDIF templates can be used for quickly adding new entries. A built-in X.509 parser displays a detailed view of certificates and CRLs with active links.

Collax Groupware Suite is a complete collaboration, e-mail, and messaging server with Outlook MAPI support. It offers enterprise email server functions, anti-spam and anti-virus filters, GUI management, a file server for SMB, NFS, FTP, and Apple shares, backup/restore server, IM server, and fax and SMS server. The groupware offers AJAX Web mail, calendar, team calendar, contacts, and tasks, and supports ActiveSync for mobile devices. It is free for private or commercial use of up to five users.

Collax Business Server is an all-in-one Linux server for small- and medium-sized businesses. It delivers all the important network services within a heterogeneous business environment for communication, infrastructure, compliance, groupware, and storage, all in a reliable and secure way which is easy to manage. It also provides essential security functions such as firewalling and virus and spam filtering, to protect against hacker attacks, viruses, and unsolicited email messages.

Ldap Synchronization Connector reads from any data source including databases, LDAP directories, or files and transforms and compares this data to an LDAP directory. These connectors can then be used to continuously synchronize a data source to a directory, for a one shot import, or to compare differences by outputting CSV or LDIF format reports. It offers a powerful transformation engine based on a scripting language to easily manipulate data on the fly. Various identity management functions are included for directory-specific compatibility - most notably Active Directory (changing passwords, account status, last logon, etc.).

Fusiondirectory is an infrastructure manager. It allows you to manage users, groups, services, servers, workstations, and the deployment of operating systems and software. All these operations are feasible from a Web interface.

Admin4 is a tool for server maintenance via several plugin modules, running on Windows, Mac OS X, Linux, and many more platforms. Currently, plugins for BIND DNS, LDAP, and PostgreSQL are included. It is designed as a framework, using Python for fast development of plugins and custom modifications. The DNS plugin should be able to query (axfr) any type of server, and performs updates via DDNS, which ensures that it won't interfere with other DDNS clients (DHCP, SAMBA4). For BIND 9.7 and up, statistics are supported as well and used to retrieve the server's zones automatically. The LDAP plugin features browsing and generic editing of all types of LDAP entries with schema support. In addition, high-level editing of objects like users, groups and samba domains is supported. Custom objectClasses and attributes can easily be added. The goal of the plugin was to replace the Windows-only ldapadmin tool with a portable solution.

Kolab is a groupware system that provides a
comprehensive and flexible solution for
workgroups. Email, contacts, and group calendars
can be managed via the Web, Windows/Outlook, and
Linux/KDE. It supports offline synchronization and
full seamless support of mixed client environments
because the Kolab-XML storage format is fully open
and avoids MAPI/TNEF.

Zentyal Server aims at offering small and medium businesses (SMBs) a native drop-in replacement for Windows Small Business Server and Microsoft Exchange Server which can be set up in less than 30 minutes and is both easy to use and affordable.